Existing building structure demolition protection device close to metro depot track

Abstract

The utility model provides a demolition protection device for an existing building structure close to a metro depot track. The demolition protection device comprises a safety protection frame erected between the existing building structure and the existing track and a buffer isolation structure arranged in the existing building structure close to one side of the track. The safety protection frame is fixed to a wall column, close to an existing track, of the existing building structure. And the buffer isolation structure is anchored on the ground on the inner side of the wall column. The existing building structure and the existing track are safely isolated, so that the safety and normal operation of the existing track are ensured, and the demolition operation is ensured to be smoothly carried out.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering construction, and in particular relates to a protective device for dismantling an existing building structure adjacent to a subway vehicle depot track. Background Art

[0002] There are few research results on the construction of additional covers for existing subway depots in China, and there are technical difficulties in the actual construction process that need to be solved urgently.

[0003] Since the original garage wash structure does not meet the stress conditions of the added structure, a new garage wash needs to be constructed on the original site. The original structure is completely demolished, and the pile foundation and structure are reconstructed to meet the stress conditions of the added structure and the planning requirements of the added land reclamation project. In order to ensure the demolition and reconstruction of the existing garage wash in the subway depot, while ensuring the normal use of the existing subway depot, if traditional excavators are used for demolition, it will cause disturbances to the adjacent tracks, and there is no guarantee that construction waste will not invade the subway tracks, affecting the normal operation of the existing subway depot. How to ensure safe operation and maintenance while carrying out efficient and high-quality demolition and reconstruction, and developing demolition construction methods for existing building structures near subway depot tracks, is an important reference for improving the development of urban TOD models and construction technology. Utility Model Content

[0004] The purpose of the utility model is to ensure safe operation and maintenance while carrying out efficient and high-quality demolition and reconstruction.

[0005] To achieve the above-mentioned purpose, the utility model provides a protective device for dismantling an existing building structure adjacent to a subway depot track, comprising a safety protection frame erected between the existing building structure and the existing track, and a buffer isolation structure arranged in the existing building structure on one side close to the track;

[0006] The safety protection frame is fixed on a wall column of the existing building structure close to the existing track;

[0007] The buffer isolation structure is anchored on the ground inside the wall column.

[0008] As a further improvement, the safety protection frame is a scissor brace protection frame, which is composed of a scaffold and a scissor brace fixed on the outside of the scaffold;

[0009] The extension sections of the longitudinal connecting rods of the scaffolding perpendicular to the wall columns extend to the inner side of the wall columns, and the adjacent extension sections are connected by transverse connecting rods arranged on the inner side of the wall columns.

[0010] As a further improvement, the extension section is connected to the transverse connecting rod via a clamp.

[0011] As a further improvement, there are multiple scissors struts, which are connected in sequence along the height direction of the scaffolding, and the length of the staggered overlapping sections of the connected pipe sections is at least 1 meter.

[0012] As a further improvement, at least two transversely extending transverse support plates are arranged on the outside of the scissors strut, which are respectively arranged at the lower edge of the hinge point of the scissors strut and the top of the scissors strut; and each transverse support plate extends to the inner side of the wall column through a plurality of longitudinal pull rods and is welded to the transverse connecting rod.

[0013] As a further improvement, the buffer isolation structure is a right-angled trapezoidal steel frame with a regular trapezoidal cross-section, whose slope surface is arranged toward the wall column, and the steel pipe or angle steel at the bottom surface contour is fixed to the ground at a set distance by multiple evenly distributed rivets.

[0014] As a further improvement, a steel mesh is fixed to the outer surface of the right-angle trapezoidal steel frame.

[0015] As a further improvement, a buffer component is provided on the slope surface of the right-angled trapezoidal steel frame extending from its bottom surface to two-thirds of the height of the right-angled trapezoidal steel frame. The buffer component is composed of a hard high-density foam layer and a rubber air bag wrapped in the hard high-density foam layer.

[0016] The utility model has the advantages that the safety and normal operation of the existing track are ensured and the smooth progress of the demolition work is ensured by safely isolating the existing building structure from the existing track. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic diagram of the structure of a protective device for dismantling an existing building structure adjacent to a subway depot track.

[0018] Figure 2 This is a schematic diagram of the scissors support guard frame setting.

[0019] Explanation of the accompanying drawings: 1. Safety protection frame; 2. Buffer isolation structure; 3. Wall column; 4. Scaffolding; 5. Scissors brace; 6. Longitudinal connecting rod; 7. Extension section; 8. Transverse connecting rod; 9. Transverse support plate; 10. Steel mesh; 11. Buffer assembly. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of this patent to clearly and completely describe the technical solutions in the embodiments of this patent. Obviously, the described embodiments are only part of the embodiments of this patent, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0021] Figure 1The figure shows a protective device for demolishing an existing building structure near the track of a subway depot, including a safety protection frame 1 erected between the existing building structure and the existing track, and a buffer isolation structure 2 arranged in the existing building structure near the track; the safety protection frame 1 is fixed on the wall column 3 of the existing building structure near the existing track; the buffer isolation structure 2 is anchored on the ground inside the wall column 3. By setting up the safety protection frame 1 and the buffer isolation structure 2, a clear operation isolation is established, and the construction waste generated during demolition and construction is fully isolated, effectively preventing the splashing and rolling of broken objects from causing damage to the track. After the building far from the track is completed by an excavator, the existing building near the track, such as structural plates, beams and wall columns, is demolished by static cutting, and finally the construction waste is cleared. The entire demolition and construction process can effectively protect the existing track building according to the operation sequence and method.

[0022] Depend on Figure 1 It can be seen that the safety protection frame provided in this embodiment is a scissor brace protection frame, which is mainly composed of a scaffold 4 and a scissor brace 5 fixed on the outside of the scaffold 4; wherein, the extension section 7 of the longitudinal connecting rod 6 of the vertical wall column of the scaffold 4 extends to the inside of the wall column 3, and is connected to the adjacent extension sections through the transverse connecting rod 8 placed on the inside of the wall column 3, which plays a fixing role. The extension section 7 and the transverse connecting rod 8 are connected by a clamp for easy quick disassembly.

[0023] The scissors support 6 is multiple, along Figure 2 The scaffolding 4 shown is connected in sequence in height direction, and the length of the staggered overlapping sections of the connected pipe sections is at least 1 meter. At the same time, in order to achieve the stability of the structure, this embodiment Figure 2 At least two transversely extending transverse support plates 9 are arranged on the outside of the scissors strut 6 shown, which are respectively arranged at the lower edge of the hinge point of the scissors strut 5 and the top of the scissors strut 5; and each transverse support plate 9 passes through the scaffolding 4 through a plurality of longitudinal tie rods (tie rods parallel to the longitudinal connecting rod 6) and extends to the inner side of the wall column 3 and is welded to the transverse connecting rod 8.

[0024] Depend on Figure 1 It can be seen that the buffer isolation structure 2 is a right-angled trapezoidal steel frame with a regular trapezoidal cross section, with its sloped surface facing the wall column 3, and the steel pipe or angle steel at the bottom contour is fixed to the ground at a set distance through multiple evenly distributed rivets. The outer surface of the right-angled trapezoidal steel frame, i.e., the buffer isolation structure 2, is fixed with a steel mesh 10 to isolate the rubble generated by the demolition and construction operations and buffer the impact force, thereby reducing its destructiveness.

[0025] In order to further enhance the protection performance and avoid the damage to the safety protection frame 1 and the wall column 3 caused by the buffer isolation structure 2 or its components moving toward the wall column 3 due to excessive external impact force, this embodiment is specially provided with a buffer component 11 on the slope surface of the right-angled trapezoidal steel frame extending from its bottom surface to two-thirds of the height of the right-angled trapezoidal steel frame. The buffer component 11 is composed of a hard high-density foam layer and a rubber air bag wrapped in the hard high-density foam layer.

Claims

1. A protective device for dismantling an existing building structure adjacent to a subway depot track, characterized in that: It comprises a safety protection frame (1) erected between an existing building structure and an existing track, and a buffer isolation structure (2) arranged in the existing building structure on one side close to the track; The safety protection frame (1) is fixed on a wall column (3) of the existing building structure close to the existing track; The buffer isolation structure (2) is anchored on the ground inside the wall column (3).

2. The removal protection device according to claim 1, characterized in that: The safety protection frame is a scissor brace protection frame, which is composed of a scaffold (4) and a scissor brace (5) fixed on the outside of the scaffold (4); The extension sections (7) of the longitudinal connecting rods (6) of the scaffolding (4) perpendicular to the wall columns extend to the inner side of the wall columns (3), and the adjacent extension sections are connected by transverse connecting rods (8) arranged on the inner side of the wall columns (3).

3. The removal protection device according to claim 2, characterized in that: The extension section (7) is connected to the transverse connecting rod (8) via a clamp.

4. The removal protection device according to claim 2, characterized in that: The scissors struts (5) are multiple and are connected in sequence along the height direction of the scaffolding (4), and the length of the staggered overlapping sections of the connected pipe sections is at least 1 meter.

5. The removal protection device according to claim 2, characterized in that: At least two transversely extending transverse support plates (9) are arranged on the outside of the scissors strut (5), which are respectively arranged at the lower edge of the hinge point of the scissors strut (5) and the top of the scissors strut (5); and each transverse support plate (9) passes through the scaffolding (4) through a plurality of longitudinal tie rods and then extends to the inner side of the wall column (3) and is welded to the transverse connecting rod (8).

6. The removal protection device according to claim 1, 2 or 3, characterized in that: The buffer isolation structure (2) is a right-angled trapezoidal steel frame with a regular trapezoidal cross section, the slope of which is arranged toward the wall column (3), and the steel pipe or angle steel at the bottom contour is fixed to the ground at a set distance by a plurality of evenly distributed rivets.

7. The removal protection device according to claim 6, characterized in that: A steel mesh sheet (10) is fixed on the outer surface of the right-angle trapezoidal steel frame.

8. The removal protection device according to claim 6, characterized in that: A buffer component (11) is arranged on the slope surface of the right-angled trapezoidal steel frame extending from its bottom surface to two-thirds of the height of the right-angled trapezoidal steel frame. The buffer component (11) is composed of a hard high-density foam layer and a rubber air bag wrapped in the hard high-density foam layer.

Images